baber/WOPTO huggingface dataset:
Patent GB-340146-A (GB)
Title: Improvements in or relating to pressure reducers
IPC: G05D16/12
Filed: 1930-01-13
Abstract: 340,146. Float-actuated valves. STERN, M. and STERN, F., (trading as SCHIFF & STERN), 41, Untere Donaustrasse, Vienna. Jan. 13, 1930, No. 1173. [Class 135.] Pressure - regulating valves.-A pressure-reducing valve of the kind in which the valve is actuated by a float E floating in a constant volume of liquid adapted to be pressed into an elevated vessel by the fluid pressure has the float chamber G connected to the elevated chamber L by a thin tube M helically or otherwise bent to permit vertical adjustment of the upper vessel. An armoured or unarmoured flexible tube or an uncoiled pipe of small diameter may be used in place of the helically coiled pipe and the upper vessel may be supported by a cord passing over a pulley. To prevent ejection of the mercury from the upper vessel it may be closed and connected if desired to a second open vessel arranged above it. To damp the movements of the liquid an air chamber F may be formed in the float or otherwise, and an adjustable throttle and non-return valve with a byepass may be inserted in the pipe K. The float is connected to the valve C by a lever D which may be arranged at right angles to the direction of flow through the valve casing. In the form shown in Fig. 4 the float chamber is separated from the valve chamber by a partition X so that a fluid other than the controlled fluid may be admitted through connection g to operate the device. The float operated valve may operate as an auxiliary valve to control the operation of a power actuated main valve.
Patent GB-238456-A (GB)
Title: Improvements in or relating to air strainers
IPC: B01D46/10
Filed: 1925-01-15
Abstract: 238,456. Rushen, P. C., (National Safety Appliance Co.). Jan. 15, 1925. Filtering; steam separators and the like.-Apparatus for removing dirt and moisture from air in circulation comprises a cylindrical chamber having a tangential inlet, in which a preliminary deposition takes place, and a filtering mass of fibrous material above the chamber, having central baffles above and below it, through which the air passes and is further cleaned. The settling chamber 10 is formed with a flange for attachment to a cover 16 supported from a screwed stud 20. Air enters by a pipe 24 having a tangential inlet passage 30 to the chamber, which is formed with a rounded bottom and provided with a plug 60 or a pet cock for removal of the oil, dirt, or water deposited by centrifugal action. The air rises around a downturned baffle 32 through a mass of fibre 42 between foraminous plates, and around a second baffle 48 to the outlet pipe 54.
Patent GB-101434-A (GB)
Title: Improvements in Aircraft.
Inventor: SAUNDERS SAMUEL EDGAR
IPC: B64C35/00
Filed: 1916-01-31
Abstract: 101,434. Saunders, S. E. Jan. 31, 1916. Planes, arrangement of.-Biplanes have their planes connected together by rigid crossed frames c instead of the usual vertical struts and crossbracing. The frames c are of hollow pressed steel or of other wrought or cast metal, or they may be of wood or of a composition reinforced with wires. The upper and lower extremities of adjacent frames c, both at the front and rear, are preferably braced by crossed wires. The ends of the frames are maintained in position by the ribs of the planes or by separate struts. Floats, arrangement of.-The floats of seaplanes are connected to extensions e of the forwardly inclined limbs of the frames c adjacent to the fuselage, additional connexions g and lateral struts being also provided.
Patent GB-488011-A (GB)
Title: Meter for all kinds of liquids
IPC: G01F1/07
Filed: 1938-01-17
Abstract: 488,011. Rotary meters. MUSELIER, B. G. M. Jan. 17, 1938, No. 1473. [Class 110 (ii)] A liquid meter has the impelling mechanism, i.e. vanes 1, 2, and gears 3<1> ... 3<6> contained within a chamber 10, the whole being removable from the top 6. The chamber is pressed upwards against a gasket 15, by a screw which passes through a threaded hole H in a stirrup 11. Before removing the chamber, valves 16<1>, 16<2> are swung over to cover holes 19<1>, 19<2> and uncover ports 201, 20<2>, which are connected by an annular groove 21 forming a byepass. Normally, liquid passes from an inlet 8<1> to an outlet 8<2> by way of hole 19<1>, a filter 7, and through the measuring chamber. Fig. 6 shows a coupling device between the measuring chamber mechanism and the indicating mechanism 28 ... 32. Pins 24<1> are spring-pressed into engagement with one pair of a series of holes 27<1> arranged on a diameter d on the gear 26. A wooden shearing key 31 is incorporated, to prevent heavy stresses being transmitted to the mechanism 28, 32.
Patent GB-107180-A (GB)
Title: Improvements in Piston Rings.
Inventor: MARCH WILLIAM
IPC: F16J9/16
Filed: 1917-01-30
Abstract: 107,180. March, W., Mann, A., and Robertson, D. W. Jan. 30, 1917. Piston packing. - In packing of the type described in Specification 15914/13, in which split rings are employed in pairs c, d having their surfaces in mutual contact inclined, one ring or each is formed with a projection g entering the slit in the other ring. The rings are split at their parts of minimum depth, and the depth of the productions is preferably equal to the minimum depth of the rings.
Patent GB-763769-A (GB)
Title: Improvements in or relating to gas refrigerators operating on the reversed hot gas engine principle
IPC: F25B9/00
Filed: 1955-01-18
Abstract: 763,769. Refrigerating; thermal regenerators. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOETLAMPENFABRIEKEN. Jan. 18, 1955 [Jan. 19, 1954], No. 1516/55. Drawings to Specification. Classes 29 and 64(1) In a reversed hot gas engine having a wire or like regenerator filling, L/dh = C.P<SP>0À23</SP>. #(T - 1) in which P = P max /n.n, L is the length of the regenerator, dh is the diameter of the wire, T is the ratio of the absolute temperatures of the cooler and freezer respectively, P max  is the maximum pressure of the working medium during a cycle, n is the number of revolutions of the machine per second, n is the dynamic viscosity of the working medium at the mean temperature of the regenerator and C is at least 3.5 and at most 10.5. Specification 695,857 is referred to.
Patent GB-304240-A (GB)
IPC: H02P5/48
Filed: 1929-01-16
Abstract: 304,240. Lorenz Akt.-Ges., C. Jan. 17, 1928, [Convention date] Centrifugal governors; differential governors.-For the purpose of automatically controlling the speed of a large electric motor 1 to synchronize with a small motor 2, a disc driven by the motor 1 carries a nut 6 into which screws a short shaft with a pinion 7 driven by relative movement of the two motor shafts, the inner end of the screwed shaft being fitted with an electric contact 8 forming part of a known kind of centrifugal electric speed regulator for the large motor. The motor 1, as shown, has a field-winding 3 with a regulating resistance 4 which is repeatedly switched in and out in the known manner. Modifications are described in which the screwed shaft acts upon a resistance slider used in conjunction with the centrifugal regulator.
Patent GB-750708-A (GB)
Title: Improvements in or relating to drilling fluids for drilling deep wells
IPC: C09K8/24
Filed: 1954-01-19
Abstract: A drilling fluid for drilling deep wells by the rotary process comprises an aqueous medium, an inorganic solid suspending agent such as a clay, and an additive comprising a permanently hydrophilic, non - thermosetting sulphonated melamine-aldehyde resin in amount sufficient to reduce water loss into the surrounding formation without increasing the viscosity of the fluid to the extent that it cannot be circulated.  The resin is prepared by combining melamine, the aldehyde and a water-soluble salt of sulphurous acid, in any order, to produce a clear syrup of only slightly polymerized sulphonated methylol melamine.  The pH is then reduced to about 1.5 to 3.7, preferably at a 15 to 25 per cent concentration, and polymerization is continued at about 40 DEG  to 55 DEG  C. until the viscosity of a 20 per cent solids mixture is at least 50 centipoises at 25 DEG  C.  The pH is then raised preferably to neutral or slightly alkaline values.  The aldehyde used is preferably formaldehyde and paraformaldehyde, hexamethylenetetramine and acetaldehyde are also mentioned.  From 1.75 to 6 mols. of formaldehyde and 0.75 to 2 mols. of sulphite may be used per mol. of melamine.  The drilling fluid may also contain hydrocarbon oils and emulsifying agents such as tall oil, soap and fatty acid ethanolamide-ethylene oxide condensates.
Patent GB-616283-A (GB)
Title: Improvements in or relating to the manufacture of metal grids or grills
IPC: C23C14/04
Filed: 1946-01-17
Abstract: In a method of manufacturing a metal grid or grill, a surface, for example of a glass sheet, is provided with a multiplicity of discrete minute elements distributed at random, metal is deposited on to the surface between the elements and the elements are then removed.  The discrete elements may be formed by settling particles such as of glass or alumina, from a dust cloud or from a liquid medium, or a film of metal such as silver may be evaporated on to the surface and aggregated into globules by heating, or a vapour such as mercury vapour may be condensed on the surface, or a glass or silica film may be deposited and then cracked as described in Specification 598,501, [Group XL].  Metal such as gold, silver or platinum is then evaporated or sputtered on to the particle covered surface and the particles removed by washing or dissolving in an acid to leave a metal grid or grill. Specifications 490,537 and 584,970, [Group XL], also are referred to.
Patent GB-754131-A (GB)
Title: Improvements in or relating to microporous rubber sheeting
Inventor: WARREN FREDERICK WILLIAM
Filed: 1954-01-20
Abstract: <PICT:0754131/III/1> <PICT:0754131/III/2> In the manufacture of battery separators (see Group XXXVI) strips of microporous rubber have impressed therein longitudinal parallel ribs A the surfaces of which are coated with synthetic resin.  The strips are fed with ribs uppermost on a belt 1 beneath a printing roller 3 which applies to the surface of the ribs a solution of a synthetic resin.  The roller 3 is lightly engraved with a fine mesh pattern to receive the resin solution from a tray 11 supplied from a vessel 9 through a flexible tube 13 provided with a regulating pinch cock 14.
Patent GB-1444284-A (GB)
Title: Implements for the displacement of crop or like material lying on the ground
IPC: A01D78/12
Filed: 1973-07-09
Abstract: 1444284 Haymakers C VAN DER LELY NV 9 July 1973 [13 July 1972] 01663/76 Divided out of 1444281 Heading A1F The rotary rake head haymaker is identical to that of Specification 1444281 but the claims relate to the operating conditions of cooperating pairs of rake heads.
Patent GB-113127-A (GB)
Title: Improvements in Cooling, or in Cooling and Lubricating, Tandem Piston Internal Combustion Engines, and in Collecting Surplus Lubricant.
Inventor: FROST CECIL ROMNEY BICKFORD
IPC: F02B75/28
Filed: 1917-02-03
Abstract: 113,127. Frost, C. R. E., and Thorne, G. Feb. 3, 1917. Separating oil and gases ; lubricant conveyed by fluid.-In an internal combustion engine, cooling-air, which may contain lubricant, is circulated through the hollow piston rod by the reciprocation of the piston A. The oilladen air is passed through a separator G having baffes g and a surplus oil collector at G'.
Patent GB-446086-A (GB)
Title: Improvements in and relating to interlocking sheet piling
IPC: E02D5/04
Filed: 1936-01-20
Abstract: 446,086. Piles. SACHS, M., 87, Liechtensteinstrasse, Vienna. Jan. 20, 1936, No. 1757. Addition to 438,482. [Class 68 (ii)] In a pile element as described in the parent Specification, the web portion 1 turns away, as at 2, from the joint A, and then, as at 2<1>, 2<11>, 2<111>, turns towards it.
Patent GB-111949-A (GB)
Title: An Improvement relating to Hand Grenades.
Inventor: GIBBONS FRANCIS JOSEPH JAMES
IPC: F42C14/02
Filed: 1917-02-05
Abstract: 111,949. Gibbons, F. J. J. Feb. 5, 1917. Projectile fuses.-Consists in locking the handlever of a Mills grenade by a safety-pin which is similar to a brooch-pin. As shown, the part d<1>, which passes in the usual manner through the lugs b on the grenade, has formed integrally therewith a guard-piece D which hooks at d<2> over the end of the part d'. The whole pin, including the withdrawing ring d<3>, is conveniently formed from a single piece of stout wire.
Patent GB-803673-A (GB)
Title: Improvements relating to reclining chairs
IPC: A47C1/0355
Filed: 1956-01-19
Abstract: 803,673. Seats. GREAVES & THOMAS, Ltd., and COBB, W. R. Jan. 18, 1957 [Jan. 19, 1956], No. 1822/56. Class 52(2) A reclining chair has the seat member 12 at a position towards its rear edge, and the back member 16 at a position adjacent its lower edge, pivoted at spaced points on fixed horizontal axes 11, 15 respectively, the adjacent rear edge of the seat and lower edge of the back being interconnected by a single link 19. Preferably, the chair is provided with a foot rest automatically moved from a vertical to a substantially horizontal position when the back and seat move to a reclining position. As shown in Fig. 1, the foot rest 21 is linked to a front cross member 22 of the chair frame by a form of lazy-tong linkage actuated by a link 24 pivoted to the underside of the seat and to member 26 of the lazy-tong linkage. In Fig. 4 the foot rest is pivoted directly to the seat and linked to the cross bar 22 by members 42, 44. The member 44 may be dispensed with and member 42 be made to abut a roller fixed to the chair frame so that on raising the seat the foot rest is pivoted to a horizontal position.
Patent GB-1219122-A (GB)
Title: Optically driven atomic resonator systems
Inventor: BELL WILLIAM EARL
IPC: G01N24/00
Filed: 1968-01-12
Abstract: 1,219,122. Automatic frequency control; light modulators. VARIAN ASSOCIATES. 12 Jan., 1968 [19 Jan., 1967], No. 1845/68. Headings H3A and H4F. [Also in Division G1] In atomic resonance apparatus such as an atomic clock a system of atomic resonators is optically pumped by a beam of radiation modulated by means including means for modulating the sense of rotational polarization of the radiation. The latter means may be a Pockels or Kerr cell adapted to switch the radiation from left to right circular polarization. The polarization modulated beam interacts directly with the resonators to cause spin precession and the pumping radiation has no amplitude modulation to interfere with measurements of the absorption of the radiation to determine resonance. The modulation frequency or the magnetic field may be swept at 100 Hz and the output pulse from a photo-cell receiving the radiation after it has passed through the atomic resonators which occurs at resonance may be displayed on a cathode-ray tube, or used to maintain the resonance condition. The invention may be used to lock an oscillator frequency to an atomic standard for a clock or as a magnetometer by measuring the modulation frequency at resonance by means of a counter. Light modulation.-A Pockels cell in which the electric field is perpendicular to the light beam 3, Fig. 7, comprises a crystal 17 in a torroidal resonant cavity 31 which may be fed with microwave energy by a loop 34. A similar cavity may be used to provide a field parallel to the light beam, Fig. 8 (not shown). The crystal may be potassium dihydrogen or dideuterium phosphate or potassium niobate, potassium tantalate, barium tantalate or potassium lithium niobate.
Patent GB-689460-A (GB)
Title: Improvements in or relating to variable impedance devices and inductors
IPC: H01F21/00
Filed: 1950-01-24
Abstract: 689,460. Variable resistors with cam correction devices. COLVERN, Ltd., and COLLINSON, R. F. Jan. 18, 1951 [Jan. 24, 1950], No. 1892/50. Class 37. [Also in Groups XXXV and XL (c)] Relates to cam correction devices incorporated in variable resistors and inductors and so adjusted as to superimpose the required amount of forwards or backwards motion of the contact member in relation to the control member to ensure exactitude of output resistance or inductance in relation to the setting of the control member. In the rotary potentiometer shown, Figs. 1 and 2, rotation of a spindle 10 moves a sliding contact or wiper 19 over a resistance wire track 20 and a cam follower or bell-crank arm 34 over the undulating surface of a stationary cam ring 35 concentric with the wire track 20. As the cam follower or bellcrank arm 34 follows the undulations as encountered the bell crank 32 responsively pivots about its angle whereby the other bell crank arm 33 pushes with greater or lesser pressure against a projection or ear 18 on a bridge 16 which through an intervening insulating yoke 24 supports a wish-bone shaped strip-metal contact member 21 at whose peak is fixed the wiper 19. The cross-wise movement of the bridge 16 thus produced is against the restraint of a control spring 37 and the final happening is variable flexure of two metal strips 15 thus to advance or retard the wiper contact 19 relatively to the spindle 10. The two strips 15 extend parallel at the sides of a tapered plate 11 which is fast with the spindle 10. The inner ends of the two strips or side arms 15 are secured to down-turned lugs 14 at the back of the plate 11 and the outer ends are secured to the down-turned ends or lugs 17 of the bridge 16. The side arms 15 may be of such resilience as to render unnecessary the separate spring 37. The output take-off from the wiper 19 proceeds via brushes 27 and slip ring 28. The cam ring 35 is carried by the heads of an annular series of screws 36 so that contour adjustment may be readily obtained as required in the calibration of the potentiometer against a standard. In another arrangement, Figs. 4 to 6 (not shown), the brushes engaging the slip ring are integral with a bowed contact member carrying the wiper contact and the bridge is formed with upstanding lugs and with integral arms which pass under the flexible side arms. According to a further disclosure, Figs. 6 and 7 (not shown), the two conventional brushes 27, Fig. 1, are replaced by bow-shaped members whose mid-points bear in the axial direction on a slip ring.
Patent GB-840573-A (GB)
Title: Labyrinth seals
Inventor: MORLEY FREDERICK WILLIAM WALTO
IPC: F01D11/12
Filed: 1958-01-20
Abstract: 840,573. Making labyrinth seals. ROLLSROYCE Ltd., and DELANEY GALLAY Ltd. Jan. 20, 1959 [Jan. 20, 1958], No. 1938/58. Class 83 (2). [Also in Group XXVI] A labyrinth seal comprises a number of metal strip annuli 19 spaced by separate spacer pieces 21. In the embodiment shown in Fig. 2, the annuli 19 are of metal of, for example, <SP>6</SP>/ 1000 -inch thick and are separated by metal spacers 21 formed with a number of part-spherical dimples 22 and secured to adjacent annuli by spot-welds in a number of the dimples. The sealing portions 19b of the annuli extend beyond the spacers 21 and each annulus has a flange 20 at its outer periphery welded or brazed to a ring 23 and the assembly of annuli and spacers is clamped between rings 24 and 25. In modifications, the spacers are formed with radiallyextending corrugations which may be flat-sided or of sinusoidal form. The annuli may be made by forming a continuous strip of the metal to the desired cross-section by extruding, drawing or rolling and then winding the formed strip around a mandrel to provide a helically-coiled strip from which separate annuli may be cut.
Patent GB-1248037-A (GB)
Title: Calcium sulphate
Inventor: HALL RAYMOND FREDERICK
IPC: C01F11/46
Filed: 1968-01-13
Abstract: 1,248,037. Defluorinated calcium sulphate. FISONS FERTILIZERS Ltd. 3 Feb., 1969 [13 Jan., 1968], No. 2021/68. Heading C1A. Gypsum (CaSO 4 .2H 2 O) is converted into the hemihydrate by treating it at 100-108‹ C. with an aqueous solution or suspension containing sulphuric acid in a concentration greater than 15% by weight (preferably 20-40% by wt.), and silica or boric acid or precursors therefor, such as a silicate or a borate or borax, and recovering the calcium sulphate hemihydrate. The process which removes fluorine impurities in the calcium sulphate may be combined with a process for making phosphoric acid. Phosphate rock is treated with phosphoric acid to form monocalcium phosphate which is reacted with sulphuric acid to give phosphoric acid and gypsum, the gypsum being separated from the phosphoric acid and being treated as above to give the hemihydrate and the aqueous solution containing sulphuric acid which then forms a part or the whole of the sulphuric acid which is reacted with the mono-calcium phosphate.
Patent GB-1244282-A (GB)
Title: Vulcanizing presses
Inventor: SODERQUIST LESLIE EDWARD
IPC: B29D30/06
Filed: 1969-01-14
Abstract: 1,244,282. Moulding tyres. McNEIL CORP. 14 Jan., 1969 [20 Feb., 1968], No. 2077/69 Heading B5A. A tyre vulcanizing press for tyres having folded side walls includes a stationary lower mould part 24, Fig. 2, an upper mould part 22 attached to a top link 26 of the press, and a tread mould part 23 attached to a linkage on the top link so that during the lowering of the upper mould part to effect the folding of the side walls of a tyre carcass C, Fig. 5, which is distended by fluid pressure and contacts the part 23, the latter is caused, by the linkage, to move downwardly at a predetermined rate, e.g. at half the rate of movement of the upper mould part. The side walls of the tyre are folded by rings 52 and 56 on the mould parts 22 and 24. The linkage, Fig. 9, includes vertical rods 81 connected at their lower ends to the mould part 23 and at their upper ends to a linkage including clevises 79, lever arms 76 keyed to shafts 65, 77 carried by the top link of the press. A lever arm 63 is keyed to the shaft 65 and its free end is connected by a clevis 62 to a rod 61 slidable vertically in bushes 68. When the top link is lowered the lower end of the rod 61 contacts an adjustable stop 70, Figs. 2 and 5, producing downward vertical movement of the rods 81. The mould part 23 may be raised to contact the upper mould part, when the mould is opened, by a pressure cylinder 95 carried by the upper link 26 with its piston-rod connected to the link 63. The tyre carcass is supported by vertically adjustable upper and lower bead ring plates 42, 44. As described, the press includes two side-by-side mould assemblies.
Patent GB-891060-A (GB)
Title: Improvements relating to agricultural machines for harvesting sugar beet and like root crops
IPC: A01D27/02
Filed: 1960-01-20
Abstract: 891,060. Root-crop harvesters. JONES, T. J., and BRAND, E. P. Dec. 23, 1960 [Jan. 20, 1960], No. 2097/60. Class 6(3). A combined beet-harvester and top-collector comprises a plurality of topping units B, C arranged for simultaneous operation on adjacent plant-rows, corresponding lifting means, such as G, Fig. 1, aligned with the topping units, a first conveyer system H, I to receive the cut tops from the topping units for conveyance to a disposal point K whence they pass either on to the ground, into an integral receptacle, or into a separate receiving vehicle alongside, and a second conveyer system M,N,O which receives the lifted beet for conveyance to a discharge point. The topping units each comprise a knife 23 carried on a U-shaped bracket 33 and a set of serrated discs 24 which impale the cut tops and carry them around to be stripped by a fixed comb, Fig. 5 (not shown), and ejected on to the conveyers H, I. which feed a further conveyer J discharging into a shoot K with an adjustable flap 130 permitting discharge in two. alternative directions. The topping units are carried by cranked extensions 21 of the frames 13 which carry the conveyers H, I, these frames being laterally adjustable along a transverse upper bar 15 and being floatingly supported at their lower ends by springs 131 attached to-the main wheeled frame A of the harvester. The topping-unit discs 24 are driven from the landwheels 2 of the machine by chains, but the remaining moving parts are driven from the towing tractor through a main shaft 104 and chain-drives such as 120, 124. The twin-conveyers M, N are not laterally adjustable but the pairs of shares D, E, F, G at their lower ends are both laterally and angularly adjustable.